"South Bay hot" is a phrase used to describe the looks of a person who lives in Silicon Valley and is relatively attractive for the South Bay. Because of all of the tech firms in the area, the average looks are lower than is typical, so the standards are lower, too. A person who is a 6 in a major city, such as SF or LA, can be considered an 8 in the South Bay.
by Matt!!! September 5, 2007